JPEG detection in configure.ac defines HAVE_JPEG to 0 if the jpeg lib isn't found, rather then not defining it. https://bugzilla.gnome.org/show_bug.cgi?id=769197
JPEG detection in configure.ac defines HAVE_JPEG to 0 if the jpeg lib isn't found, rather then not defining it. https://bugzilla.gnome.org/show_bug.cgi?id=769197